diff options
| author | Isaku Yamahata <isaku.yamahata@intel.com> | 2021-02-17 21:51:11 -0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-02-23 10:58:42 -0500 |
| commit | 24cd04fce06b0d54e5ca2c12f20f714894a78b95 (patch) | |
| tree | 33b7a4e469e08c03948deb97fd1d7dd494875512 /hw/acpi/piix4.c | |
| parent | 7995d9a399ecb7f509e2862b96bc2dcb249a8d44 (diff) | |
ich9, piix4: add property, smm-compat, to keep compatibility of SMM
The following patch will introduce incompatible behavior of SMM.
Introduce a property to keep the old behavior for compatibility.
To enable smm compat, use "-global ICH9-LPC.smm-compat=on" or
"-global PIIX4_PM.smm-compat=on"
Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Message-Id: <47254ae0b8c6cc6945422978b6b2af2d213ef891.1613615732.git.isaku.yamahata@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Diffstat (limited to 'hw/acpi/piix4.c')
| -rw-r--r-- | hw/acpi/piix4.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c index 669be5bbf6..30dd9b2309 100644 --- a/hw/acpi/piix4.c +++ b/hw/acpi/piix4.c @@ -74,6 +74,7 @@ struct PIIX4PMState { qemu_irq irq; qemu_irq smi_irq; int smm_enabled; + bool smm_compat; Notifier machine_ready; Notifier powerdown_notifier; @@ -642,6 +643,7 @@ static Property piix4_pm_properties[] = { use_acpi_root_pci_hotplug, true), DEFINE_PROP_BOOL("memory-hotplug-support", PIIX4PMState, acpi_memory_hotplug.is_enabled, true), + DEFINE_PROP_BOOL("smm-compat", PIIX4PMState, smm_compat, false), DEFINE_PROP_END_OF_LIST(), }; |